Pipe-cutter



(No Model.) I 3 sheets-sheet 1. D. W. FRENCH.l f

PIPE GUTTER.

Patented .my 27., 1897.

(No Model.) 3 Sheets-Sheet 2. D. W.. FRENCH. PIPE GUTTER.

No. 587,093. Patented July 27, 1897.

wlTNEssEs INVENTOR BY d@ ATTORNEY (No-Model.)

. l 3 Sheets'-Sheet 3. D. W. FRENCH.

PIPE GUTTER.

N. 587,093, Patented July 27, 1897'.

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DAVID WV. FRENCH, OF UNION HILL, NEW JERSEY.

PIPE-CUTTE R.

SPECIFICATION forming part of Letters Patent No. 587,093, dated .my 27, 1897. Application filed February 2, 1.893. Renewed May 21,1897. Serial No. 637,623. (No model.)

To all whom t may concern.'

Be it known that I, DAVID W. FRENCH, a citizen of the United States, and a resident of Union Hill, in the county og Hudson and State of N ew J ersey, have invented certain new and useful Improvements in Pipe-Cutters, of which the following is a specification. My invention relates to the class of pipecutters in which a cutter-carrier and cutter are caused to travel around a pipe or bar to cut it; and the invention has for its object to provide improved means for connecting the parts of the device with a pipe or bar and properly holding them-5 also, to provide improved means for automatically feeding the cutter as it is carried around the pipe or bar.

Another object is to provide improved Reference is to be had to the accompanying` drawings, forming part hereof, wherein- Figure 1 is a vertical longitudinal section of the device shown mounted on a pipe. Fig. 2 is a detail face view of the cutter-carrier ring or body. Fig. 3 is a correspondingview of themain frame orbody. Fig. 4 is a detail face view of the ring for holding the parts together. Fig. 5 is a partlyeb'roken side view of the device, looking from the left in Fig. l, showing means for centering it upon a pipe, this centering mechanism being omitted from Fig. l; and Fig. 6 isa view corresponding to Fig. 1, on an enlarged scale, showing the means for centering the device upon a pipe. In the drawings, the letter A indicates a frame or body having a bore a to receive a pipe B,- any suitable means being employed for holding frame A rigidly on pipe B--as7 for instance, set-screws a3. The frame A is provided with a circular portion h and a shoulder c, as shown. The frame A is preferably made in two parts or halves a2 a3, that may be held firmly together by bolts or the like d, as shown. (See Fig. 3.) By this means the frame A may be placed upon a pipe B, ,whose ends are both embedded in the earth or otherwise held and which would not permit the frame being on one part to receive a projection e3 on the other part, whereby the parts cgos can be readily centered to bring the apertures for the bolts d CZ quickly and accurately in line.

D is a cutter-carrier or ring having a bore D2 to encircle the portion h of frame A, and itis adapted to travel around thereon. (See Fig. 1.) The cutter carrier or frame D is also preferably made in two parts held together by bolts d and provided with joints e, e2, and e3, like frame A, for the same purpose.

The cutter-carrier D on one side bears against shoulder c on frame A. The outer sides of cutter-carrier D and frame Aare brought substantially flush, and a ring E is placed onthe end of frame A and extends in front of cutter-carrier D to hold it on frame A and permit it to travel around on said frame between shoulder c and ring E. The ring E is made in 'two or more parts to permit it to be placed over pipe B, and it may be secured to the frame A by screws passing through holes E2 in ring E or otherwise.

By the foregoing means I am enabled to readily clamp the parts mentioned upon a `pipe however the lattermay be held. ,The

two-part ring E is essential to hold cuttercarrier D upon frame A, and yet it can be adjusted upon a pipe held at both ends very easily and quickly.

The cutter-carrier D is provided on its inner side with gear-teeth f, that are adapted to mesh with a pinion g, carried by a shaft h, suitably journaled in frame A. The shaft h carries a gear-wheel i, that meshes with a pinion j on a shaft or pivot Z, carried in frame A. A handle m may be adj ustably connected with shaft Z for turning the latter. As the .pinion g is turned the cutter-carrier-D is carried around the pipe B and upon the frame A. By means of the gearing j great power may be applied upon cutter-carrier D, whereby a person is enabled to readily operate the device to out a pipe without undue expenditure of power.

The cutter-carrierD carries a suitable cuflOO ter or tool F, arranged te eut pipe B as it is carried around the latter. G is a block carrying the cutter F in suitable manner. The block G is carriedin a recess or guide G2 in an extension or standard D3on frame D. The block G is moved to feed the cutter F toward or from the pipe B, and for this purpose it is shown receiving a rod II, that is journaled in the standard D3 and ring D and provided with a threaded portion n, enteringa threaded aperture o in block G. The rod II is shown provided with a handle or toothed Wheel I to turn said rod, which is done automatically to feed the cutterF toward pipe B as the cutter carrier or ring D turns by means of a projection J, carried by frame A and arranged to engage a tooth or arm of handle or wheel I. By this means as the wheel I engages projection J each time the cutter-carrier D turns the rod Il will be turned acorrespondiug amount, thereby moving the block G and cutter F forward toward pipe B, whereby an automatic feed for cutter or tool F is effected.

By reference to Fig. 5 means for properly centering the frame A upon the pipe B Will be seen. On opposite sides of bore a of frame A are located sliding blocks or bars K, that entcr recesses or bearings p in or on the frame A. The inner faces of blocks K are preferably recessed at fr to more readily center the pipe. The blocks K have threaded apertures s to receive threaded shafts L, which are jou rnaled at one end in or on frame A. The shafts L carry gear-wheels or pinions M, that mesh with similar Wheels or piuions N on shafts O, suitably journaled on frame A. rlhe shafts O also carry gear-wheels or pinions I), that mesh with similar wheels or pinions R on a shaft S, suitably journaled on frame A. The

shaft S may be provided with a squared end to receive handle m for turning` it, or said shaft may be otherwise turned, if desired.

From the foregoing description it will be understood that when the shaft S is turned the centering-blocks K will be moved simultaneously toward or from the pipe B in the bore a of frame A. \Vhen blocks K are moved inwardly, they will impinge uniformly upon pipe B, as in dotted lines in Fig. 5, and thus cause the frame A to be properly centered upon said pipe, the recessed inner faces of said blocks assisting in centering the frame A by causing the pipe B to move centrally until properly seated in said recesses.

Having now described my invention, what I claim is l. The combination of a frame adapted to receive a pipe, a cutter-carrier mounted thereon and having a gear-shaft 7L carried by said frame, pinion g and gear i carried by said shaft, said pinion g meshing with said gear on the cutter-carrier, pinion j, shaft l carrying it, said pinion engaging said gear z', and means for turning shaft Z, substantially as described.

2. The combination of frame A, blocks K carried thereby, threaded shafts L, supported by said frame for actuating said blocks, shafts O, shaft S and gearing between said shafts S, O and L for turning the shafts L simultaneously by a single turning of shaft S, substantially as described.

Signed at New York, in the county of New York and State of New York, this 25th day of January, A. D. 1893.

DAVID \V. FRENCH.

lVitnesses:

BENJ. C. SMITH, T. F. BoURNE. 

